100%. A book, a backyard and a stick is all kids need. For each birthday they get an additional book and stick.
To pair with a stick, when old enough: a knife.
Our kid started with a knife when they were around 2 or 3. A dull-ish slightly serrated one first and graduated to an actual kitchen knife at 4. Got their first actual outdoor knife for their 5th birthday.
That's what you use to do kindling, cut firewood to a smaller size, open any food packaging you might have, cut up ingredients for food etc etc.
Swiss army knives are kinda useless though. Leatherman-style pliers + stuff utility knives are a lot more useful in the modern world. You need pliers a lot more than a wine bottle opener or a toothpick :)